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See http://gcc.gnu.org/PR13250
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Fixes bad code generated when compiling SHA256 for SH processor
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===================================================================
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RCS file: /cvs/gcc/gcc/gcc/config/sh/sh.md,v
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retrieving revision 1.171
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retrieving revision 1.172
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diff -u -r1.171 -r1.172
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--- gcc/gcc/config/sh/sh.md 2004/05/10 23:25:13 1.171
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+++ gcc/gcc/config/sh/sh.md 2004/05/28 05:47:36 1.172
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@@ -2194,7 +2194,7 @@
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parts[0] = gen_reg_rtx (SImode);
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parts[1] = gen_reg_rtx (SImode);
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emit_insn (gen_rotlsi3_16 (parts[2-choice], operands[1]));
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- parts[choice-1] = operands[1];
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+ emit_move_insn (parts[choice-1], operands[1]);
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emit_insn (gen_ashlsi3 (parts[0], parts[0], GEN_INT (8)));
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emit_insn (gen_lshrsi3 (parts[1], parts[1], GEN_INT (8)));
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emit_insn (gen_iorsi3 (operands[0], parts[0], parts[1]));
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